I sell both 20x30 prints and 30x45, you can choose whether you want the photo on mat or glossy paper. Glossy generally is very vibrant, but it is easy to get fingerprints on. Mat paper generally is less vibrant but reflects less light and finger prints are less visible. All photographs can be printed on A4 and most on A3. To order just send me a whatsapp or an email, I will calculate the shipping costs and you can tell me what image you want printed!